Made of tempered steel for years of service. Alphabet and numbers set includes 36 stamps: 26 letters, and 10 numerals. It works perfectly on 925 Sterling silver, copper and brass. If you want to have deep marks, anneal the target metal will help.
Dimensions : 58mm L x 5.5mm W
Letter Size : 3mm
Metal type : Steel
Style : Alphanumeric Capital Letters